期刊名称：Archiwum Fotogrametrii, Kartografii i Teledetekcji
印刷版ISSN：2083-2214
出版年度：2006
卷号：16
语种：English
出版社：Main Board of Association of Polish Surveyors
摘要：July 4th 2002 saw the biggest storm disaster in Polish State Forest (PG LP) history,located in northeastern Poland. It caused huge losses in forest areas in the Puszcza Piska Primeval Forest,across an area of 330 km2 (130 km long and several km wide). The area of completely destroyed forest area was about 170 km2 . An initial estimation of the stand volume damage was ca. 3.6 mln m3 . The PG LP administration immediately decided to make a forest inventory supported by CIR aerial images (Kodak Aerochrom Infrared 1443;scale 1:15 000,date: Nov. 14,2002). At the same time,for scientific purposes,a decision was made to establish an observation area (“SZAST”) of the natural forest regeneration process in the totally destroyed parts of the forests. The precision inventory of the “SZAST” area and surrounding buffer zone was based on geoinformation technologies. The CIR aerial images were elaborated on the “DEPHOS” digital photogrammetric station. The GCP points for the aerotriangulation process were collected using DGPS receivers. Following the standards of the IBL (specially prepared by Dr. Glaz) classification,the 3D digitizing was done covering four main Levels 0-4 with 6 sub-levels (detailed description). 1 576 polygons collected, covering an area of 1 965.60 ha. The training areas for the photointerpretation team were collected using DGPS and GIS based on the Digital Forest Map (with a SILP/LAS description database). The digital orthophotomap mosaic (color balanced 3.15 GB GeoTIFF) was generated based on the CIR aerial photos and the DSM (Digital Surface Model). After the wavelet compression (ratio 1:26) to ECW format (123.05 MB) the CIR-orthophotomap can be used,not only in Desktop- or Mobile-GIS, but also in every office (like MS Word,Power Point) application. The study confirmed the necessity of using of GI-T for: quick retrieval,processing and generating objective geodata which can be verified and support decision processes in areas of natural disasters.
其他摘要：W dniu 4 lipca 2002 roku,w północno-wschodniej Polsce huragan zniszczył 330 km2 drzewostanów,w tym kompletnie 17 000 ha (straty 3.6 mln m3 drewna). Na zniszczonym fragmencie obszaru w Puszczy Piskiej utworzono Las Ochronny „SZAST” (445 ha). Nalot fotogram
关键词：aerial photos CIR;photointerpretation of damaged forest stands;GPS;GIS analysis
